This is libctl, a Guile-based library for supporting flexible control files in scientific simulations. libctl was written by Steven G. Johnson, and its home page is: http://ab-initio.mit.edu/libctl

To install libctl, one normally only needs to do:

./configure
make
make install

Files are installed under /usr/local by default, but this can be changed by passing --prefix=<dir> to configure.

Documentation can be found in the libctl manual online or in the doc/ directory, and an example program in the examples/ directory. The main source code for libctl is in the base/ and utils/ directories.

In utils/geom.*, you can find specification files and functions for dealing with structures consisting of solid geometric objects in some lattice basis. The example program uses this code.

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.